Mark V sez, "Electric Puppet Theatre is a web comic that I draw in Inkscape, using git for version control. A neat side effect of using git is that I can make a 'making of' video for each 24 page issue by playing the git repository through ffmpeg. The linked page contains animations for the first two issues as well as instructions on creating this type of animation (touching on how to make both ogg and youtube-compatible webm animations)."
Git is an incredibly powerful tool for keeping track of the changes of files. It is the version control software used to maintain the Linux kernel, managing and merging code written by many contributors around the world. But it's also useful for individuals to keep track of their own work. I use Thomas Gideon's Flashbake scripts to log all the changes to the novels and stories I work on, automatically saving any edits every 15 minutes and noting a bunch of easy-to-automate "context" (the local timezone and weather, the music I'm listening to, my most recent Boing Boing posts).
This is a wonderfully geeky example of how git can be combined with other powerful free/open tools, like ffmpeg (which makes and converts audio and video files) to capture your personal workflow and package it in ways that illuminate your process for other people who want to compare notes.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.